Best Episodes of People Magazine Investigates

[Los Angeles Serial Killer] A lone survivor is the only witness who can help police track down a serial killer known as the Grim Sleeper, who preys on women in South Central Los Angeles. After decades of searching, police hone in on an unlikely suspect.

In Philadelphia, police make a horrific discovery 18 months after a woman goes missing. The police pursue the woman's killer, but he always manages to stay one step ahead of the law.

A 12-year-old girl goes missing on her way to school in Oregon City, Oregon. The police investigation offers little in the way of leads. Then, a second girl disappears.

When a woman is found dead in her historic house on Horseshoe Lake, police chase her killer to the water where he drowns. But when the body is recovered, people are shocked to realize this story started 25 years earlier when two other family members were found murdered by the same man.

On a Mississippi back road, a 19-year-old woman is set on fire and left to burn alive. Her last words lead detectives down a road of dead ends and the case goes cold until a special agent taps into her location data and finds a suspect.

In the summer of 2004, Lindsay Cutshall and Jason Allen are working as councilors at an outdoor Christian adventure camp in Northern California They decide to head down the coast for a weekend getaway, but when they fail to return to camp Sunday evening, the camp staff become very concerned. A search ensues and the police discover the couples' bodies at Fish Head Beach, in Jenner, California. As police begin investigating the double homicide, they discover the killer has left no clues and little evidence. Over the succeeding days, weeks, and years, Sonoma County Detectives investigate a group of suspects as they relentlessly search for the killer.

In 1991, a young boy leaves home to check out a local brush fire that was capturing his neighborhood's attention and never returns home. Decades have passed and police continue to look for his abductor(s), while his mother is still waiting for him to find his way home.

[A Ghastly Discovery] In 2012, hikers in Los Angeles' Hollywood Hills discover the severed head of Hervey Medellin, a retired flight clerk. The cast of suspects includes former lovers, drug cartels and a murderous porn star, in a tale of lust, greed and butchery.

[Gone Without a Trace] In 2011, a 10-month-old baby girl goes missing from her home in Kansas City. The family fears she's been kidnapped by a drifter, only to be accused by the police of being responsible for her disappearance.

So-Cal surfer and tech entrepreneur, Chris Smith, dreams of making a tidy sum of money and then surfing off into the sunset. It seems his dreams have come true, but all is not as it appears.

In May 2002, a couple goes missing in Ocean City, Maryland. It's almost as if they vanished into thin air until a random, late-night burglary leads police to discover a tale of deception, brutality and savagery, the likes of which they have never seen.

In 1984, 10-year-old Kevin Collins disappears on his way home and the city of San Francisco is galvanized in an effort to find him. With few leads to go on, his case sheds light on hundreds of other kids who have vanished without a trace in the U.S.

College student Tammy Zywicki vanishes in 1992 after her car breaks down on the highway. Family and friends scramble to find her, but when her body is found 500 miles from where she vanished there are very few clues pointing to her killer. Police struggle with dead-end leads and suspects who don't pan out. New DNA technology promises to finally crack the case decades later. As her family clings to the last of their hope, the fear is that it may be too little too late for justice.

Four teenage girls are brutally murdered in a yogurt shop in North Austin, Texas, in 1991, in what becomes the biggest mass murder in Austin history. The investigation that follows drags on for years, and even when police make an arrest, justice is not guaranteed.

When a vivacious young escort, Shannan Gilbert, vanishes on Long Island's south shore in 2010, her disappearance leads police to discover the bodies of ten other victims dumped by a serial killer.

The discovery of four women's bodies on Gilgo Beach was just the beginning. But who is the Long Island Serial Killer? Investigators uncover multiple suspects and shocking theories, as they race to capture this prolific killer before he strikes again.

[Murder by the Book] On June 12, 1991, outgoing Jackie Galloway is found strangled and bound with ritualistic knots. Police investigate suspects in her inner circle but are shocked when a chance encounter with a prowler leads them to discover the murderer is a budding serial killer.

[The Keddie Murders] A mother and three teens are murdered in the remote town of Keddie, California. Despite a trail of suspects and illicit activity, no one was ever brought to justice. But recently discovered evidence may be the key to finally cracking case.

[Mystery in Texas] In 1995, 16-year-old Adrianne Jones is found shot to death in Grand Prairie, Texas. A model student and athlete, there seems to be no reason for her death. Police investigate boyfriends, neighbors and local troublemakers, but don't have any strong suspects. The case grows cold, until nine months later when a game of Truth-or-Dare leads to a startling confession and an over-achieving relationship that went murderously awry.

[20-Year Murder Mystery] Six-year-old beauty queen JonBenét Ramsey is found murdered in her Boulder, Colorado home in 1996. Investigators try to unravel if she was killed in a kidnapping-gone-wrong, by a home intruder or by one of her own family.

[Murder in Alaska] In 2004, the small town of Craig, Alaska is shocked when police discover the charred body of beloved mother and wife Lauri Waterman. People have no idea who would want to kill her, until an unlikely witness reveals a sordid story of secrets and lies.

An army surgeon, Jeffrey MacDonald, is the lone survivor of a brutal 1970 home invasion that claims the lives of his wife and daughters. But authorities doubt his story of murderous hippies and believe MacDonald is the culprit.

In the 1970s, a serial rapist is on the loose in northern California. As his reign of terror over the community wanes, police discover he isn't just a serial rapist, he's a serial murderer who has been killing people all over California.

A young couple's toddler vanishes while the family is enjoying an impromptu camping trip in Leadore, Idaho. Investigators and private detectives work around the clock to find the missing boy, only to come back to his parents.

When a young family vanishes from their Southern California dream home, friends and family are left with dozens of unanswered questions. Authorities suspect they fled the country, until an unlikely source uncovers the truth.

One summer night in 2007, the Petit family is woken up by two strangers in their quiet Connecticut home. Suddenly, these four family members find themselves being held hostage and in a fight for their lives.

Sherri Rasmussen and John Ruetten are enjoying newlywed life until one morning when Sherri calls into work sick. That night, John returns home to find his wife murdered. Years later, detectives discover Sherri's killer was too close for comfort.

A premiere fishing boat explodes into flames just off shore, stunning the small fishing town of Craig, Alaska. After fighting the flames, state troopers discover the remains of a young family and few clues as to could have set the ship blaze.

In Florida, friends and family are stunned after an esteemed criminal law professor is executed in his garage. Investigators follow a series of leads taking them on a statewide hunt in search of the murderous masterminds.

After a young couple goes missing, detectives find a clue leading them to a strange storage container in the middle of 95 acres, and what's inside unlocks the secrets of a monster hiding in plain sight.

In 1984, the body of a 14-year-old girl turns up on the beach in San Diego, and police think it relates to the murder of another teen. A clue yields an unbelievable suspect.

In 1980, Tim Hack and Kelly Drew go missing from a small Wisconsin town, and later their bodies are found in a field. A woman comes forward nearly 40 years later to help solve the so-called "Sweetheart Murders" of Hack and Drew.

Shock sweeps through a Washington community when a suburban mother gets arrested for a murder from a decade earlier in Alaska. Details of a seedy and sordid past emerge.

Police investigate the shooting deaths of millionaires Brad and Andra Sachs in their home in 2014 and track a series of clues in a chase to find the couple's killer.

After a fire chief's wife's burned body is discovered, an autopsy reveals she died from a gunshot wound to the head, and the arson investigation turns into a hunt for her killer.

In 1998, a gifted Philadelphia graduate student is found murdered in her bed, triggering a hunt for her killer.

When an 11-year-old Arizona girl vanishes while waiting for an ice cream truck, it's clear she's been abducted. The search for her leads to a trail of suspects, making it the largest missing child investigation in Arizona history.

The morning of his anniversary, Mike Williams goes duck hunting. When he fails to return home that afternoon, an all-out search commences. But it's only the beginning of a sordid mystery that will take close to 20 years to solve.

In the summer of 1980, a popular teen goes for a run around her hometown in Maine and vanishes. Days later, her savagely beaten body is found. But what happened remains a mystery for years, until her mother intervenes and forces police to reexamine the case

When three women from three different decades meet their death or go missing under mysterious circumstances, authorities are forced to examine the one thing they had in common: they all fell in love with the same man.